7 Terrifying Creatures You'll Never See Coming

We at Cracked are no strangers to the horrors of the natural world. There are some just outright evil creatures out there.

But at least the vast majority have the common decency to be upfront about the fact they can do us serious harm--claws, big teeth, bright colors. But not these guys. These assholes can ruin your day, and you'll never see them coming.

#7. The Candiru Fish

There are hundreds of organizations that are devoted to saving the Amazon. But, if Judge Joe Brown has taught us anything, it's that there are always two sides to an argument. So what could we possibly have against the rainforest? Well among other things, the Amazon is home to nightmarish creatures like the candiru, otherwise known as the vampire fish. The nickname appears to be a cruel joke, because quite frankly we'd rather get stuck in a damned city full of vampires rather than run into one these nightmares.

Seriously, if you haven't heard of these things, and what they can do, just start cringing now. It's about to get ugly.

First, it's tiny. You won't see it if you're, for instance, standing waist-deep in water. Not until it's much, much too late.

You see, when the fish isn't around humans, it utilizes its extreme sense of smell and taste to track trace amounts of urea and ammonia that leak from the gills of other, less assholish fish. Then the candiru wedges itself into their gills, extending spines to latch onto their flesh and feed on the blood of the host. To quote from Wikipedia: "the Candiru begins to gnaw a hole towards a major blood vessel and gorges itself." But who cares about that? After all, you're not a fish, right?

Hey, you know what else releases a stream of urea and ammonia? You, pissing yourself in fear of this unholy beast. Thus if you are unlucky enough to be in the Amazon River when you relieve yourself, you may fall victim to the candiru burrowing in a private region (we mean your dick). Yes, this happens. Now go back and read that part about the spines.

The candiru is represented here by a baby. The hot dog is your penis.

The fish is almost impossible to remove without surgery, though what difference does that make when the alternative would be expelling a spiny fish from your freshly ravaged nether regions?

#6. Stonefish

This spiny fish calls the Great Barrier Reef home. The Great Barrier Reef isn't generally regarded as the epicenter of terror, but the stonefish is doing its damnedest to turn that around. It lives up to its name by sitting at the bottom of the reef and refusing to move while it waits for shrimp or small fish to happen by so it can suck them into its massive mouth. It remains unclear whether or not the stonefish makes the same sound as Kirby.

Regarded by the scientific community for its ability to camouflage itself, the stonefish is better at being a rock than most rocks.

Damn, he's good.

Lying in one spot for extended periods of time and eating shrimp is something that we can get behind. Doing it in Australia is all the better. However, the Cracked staff does not share the same poison injecting, death-inducing attitude. The extremely immobile and apparently lazy nature of the fish would indicate that we could get along, but no. The jerkfish has to have 13 incredibly poisonous and incredibly sharp spines that are capable of killing a completely healthy adult human in just two hours.

Not when he's dead, though. You hear that, you fucker!?"

Some of the symptoms that could lead up to the possible death may include such timeless classics as: intense pain lasting up to 12 hours, nausea, tremors, abnormal heartbeats, seizures and paralysis. And of course, this assfish prefers shallow, warmer water, which is exactly what the majority of beachgoers enjoy. So next time you head to the beach, be on the lookout for the stonefish. Oh wait. You can't because it's fucking invisible.

#5. The African Gaboon Adder

We know what you're thinking: "Those are fish! Big deal! We'll just avoid the water, that'll take care of it."

But if you decide to stay on the land, and for some reason are unfortunate enough to have to walk around the savannas of Africa, you should probably be aware of the African gaboon adder. The owner of some large fangs and extremely potent venom, the adder utilizes an impressive set of hunting tools. But, unlike most hunters with awesome weaponry, the adder doesn't do something as trivial as moving. Instead, it just finds a place to hide and waits on some poor bastard to happen by to kill it.

And when we say, "hide," we mean that you're not going to spot the thing, even if you're looking for it. It's born with a hide of perfect camouflage almost as good as the stonefish's.

Compounding the horror of this creature, the mere force of its strike is capable of killing its prey. While a human probably wouldn't be killed by the strike alone, it would leave a mean bruise and a couple of deep puncture wounds from its two-inch long fangs. And then while you scream like a girl at a Jonas Brothers concert, the snake's venom begins to digest you from the inside out... like the music at a Jonas Brothers concert.

This hiding spot is less inspired.

Does the snake have the decency to have a rattle or some kind warning to let you know to run away? Barely. Apparently the adder will signal you're impending death with a barely audible hiss, a hiss that could easily be mistaken for rustling leaves, just like the ones that it is hiding in. Seriously, the son of a bitch basically has a picture of a leaf painted on its head.

#4. Australian Paralysis Tick

We're just going to say it now; between dingoes eating babies and the lack of a suitable crocodile hunter, Australia is overrun with creatures that want you dead. Even the bugs could care less about you.

The Australian paralysis tick is one of the most abundant and terrible parasites found down under. Ticks here in the states are an annoyance at worst but the paralysis tick, as you may have guessed, is capable of paralyzing its host so it can feed in peace.

That's not a tick.

Now this is a tick.

Oddly though, scientists are confused as to why it does this as paralysis doesn't seem to improve its efficiency. Basically, the tick just does it because it can. Oh, and the juvenile tick is so small that it is nearly impossible to remove without a magnifying glass and some tweezers. So enjoy.

These ticks are much more likely to attack the family dog than to draw sustenance from human blood, but if it chooses you, you can expect to feel the following effects: First, there will be a mild itch which may or may not be followed by fever. Then, of course, we get the paralysis. Being rendered motionless isn't a guarantee, because only the females have the ability to administer the toxin through a large, barbed hypostome. We notice science likes to give horrifying things unrecognizable names.

If you're in a hurry to see the thing in motion, well, lucky someone has bothered to make a video:

From the way they start playing with the thing at the end, there, we're thinking it's their pet. Freaking Australia. Figures.